Stop-valve



2 Sheets-Sheet I.

(No Model.)

J. OLD'. Stop Valve.`H

No 237,769. Patented Feb. 15, '1881.

INE

IIIII N.FE\'ERS, PHOTO UTHOGRAFHE (No Medel.)

2 Sheets-Sheet' 2. J OLD. y Stofp Valve.

Patented Feb. 15,1881.

we f Hill y ,2, J'

UNIT-.ED

.PATENT @FFME- JnMEs oLD, oF ALLEGHENY, PENNSYLVANIA.

SBEGIFICATION forming part of ,Letters Patent No. 237,769, dated February 15, 18:81.

Application filed October 20, i880. (No model.) I

Toall whom it may concern:

Be it vknown that l, J AMES OLD, of Allegheny, in the county of Allegheny and State of Pennsylvania, have invented a new and useful IImprovement in Stop-Valves 5 and I do hereby declare that the followingV is a full, clear, and exact description thereof, reference being had to the accompanying drawings,and to the letters of reference marked thereon.

My invention relates to an improvement in stop-valves; and it consists in adjusting the valves with relation to their seat and holding them in an adjusted position for controlling` the Iiow of the steam, gas, or liquids through the openings in the valve-seats and chamber.

My invention also consists in the manner and means for suspending the valves in their chamber with relation to their seats, and for forcing and holding them to their seats, all of which will hereinafter more fully appear.

To enable oth ers skilled in the art with which my invention is most nearly connected to make and use it, I will proceed to describe its construction and operation.

In the accompanying drawings, which form part of my specification, Figure lis a vertical section of the valve-chamber and its valves when seated. Fig. 2 is a vertical section ot' the same when the valves are lifted oft' their seats. Fig. 3 is a face view of the hanger on the lower end of the valve-stem. Fig. 4 is a face view of the valves on the side next, to the hanger. Fig. 5 is a face view of the valves on the side next to their seats. Fig. 6 is a vertical section of the han ger for the valves, representing said hanger when it is pivot-ed upon the valve-stern. Fig. 7 is altransverse section of the valves at line y of Fig. 4. Fig. 8 is a detail view of the levers, clevis, and valve-stem.

In the accompanying drawings, A represents the valve-chamber; B, its cap; C, its packing-box D, the cap of the packing-box, and E the valve-stein, all of which are of ordinary construction.

On the lower end of the valve-stem E is pivoted a hanger, F, of peculiar construction, the form of which is clearly shown in Figs. 3, 4, 5, and 6, the hanger F in this case being pivoted to the valve-stem E and held in place by means of a washer, a, and screw b; but I wish it clearly understood. that I do not conline myself to this construction and arrangement of the hanger, for itV may be rigidlyxed upon the stem, or it and the stem may beconstructed in one piece. i i

The valves G are recessed on one side, in

which recess projects outward a section ot' a sphere, c, in the center of which is a recess, d. On the recessed side of the valves is a flange, g, projecting toward the center of the' valve. yThe under side of said flange forms a V-shaped recess, e, corresponding to the form of the ends fof the hanger F. In the faces of the hanger F are circular concavities h, corresponding in contour to the spherical projections c in the recessed side of the valves Gr, so that when said projections are placed in said concavities and the valves are suspended on the hanger F the plane ot' the outer face of thevalves G may be inclined in all directions, said projections c and concavities h, forming a socket-joint, whereby such general inclination ot the outer face of the valve may be had. In one of theconcavities, h, is 'a projection, z', corresponding in outline to that ofthe recess din the spherical projections c ot' the valves G, which projection i and recess d may be used for suspending the valves Gr upon the hanger F.

It will be observed that by the recess d in the spherical projection c the pressure ony the valve in seating it is alw'ays distant from the center of the valve, which is a very apparent advantage as to leverage in holding the valve on and to its scat; and in the case ot' large valves it becomes a very important feature as to leverage and economy of material in their construction.

The inward-projecting flange g and recess e,rcombined with the points fof the hanger, is of great advantage in holding the valves Gr upon the hanger F while in the act of placing the valves in and removing them from between their seats and in placing them in and taking out of the valve-chambers A.

To the valve-chamber A is pivoted an upright arm, H, to the upper end of which is pivoted the operating-lever I, to which is pivoted the clevis J, connected to the valvestem E. In the clevis J is pivoted a lever, K, having an eccentric, Z, which acts against the under side of the lever I, and thereby holds the stem IOO E and valve G in whatever position may be elected by the operator. The eccentric l acts as a wedge for wedging or holding the lever I in a ixed position, the operation ot' which with relation to the eccentricl and lever k will be readily understood by the skilled mechanic. Between the levers I and K is a spring, m, for causing a uniform pressure of the eccentric Z against the lever I when the lever his not held by the operator. rlhe handle end of thelever Kis placed in aslot in the lever I, as indicated in Figs. l, 2, and S, which arrangement oi the levers enables the operator to manipulate both with one hand, the ad Yantage ot' which will be apparent without further description.

The construction and arrangement of the several parts of my improvement in stopvalves will be readily' understood from the foregoing description and by reference to the acccompanying drawings.

The operation of opening and closing the valves consists in simply raising and lowering the lever I. By the construction and arrangement herein described ofthe valves and their hanger ease of construction, economy ot' material, application of pressure on the valves in holding them to their seats removed from their center toward their periphery, securely holding them on the hanger torplacementand displacement'in their chamber, and adjustability of the plane of their face to the plane ot' the valve-seat is obtained, and the combination of a locking-lever with the operating-lever, the

operator can adjust and permanently x the iiow through the valve, all of which advantages are valuable, important, and desirable.

Having thus described my improvement, what I claim as ot my invention is l. The combination of the levers I K, having an eccentric lockingdevice, and the valvestem, substantially as herein described, and for the purpose set forth.

2. The combination ot' the levers I K, having an eccentric lockin g device, clevis J, and valve-stein, substantially as hereinbefore described, and for the purpose set forth.

3. The combination ot'the levers I K, clevis J, spring m, and valve-stein, substantially as herein described, and for the purpose set forth.

L rIhe hanger F, with bevel-points] and cavities lt It, in combination with the valves G- G, having a recessed flanged, g, forming a section ot' a sphere recessed at its axis, substantially as herein described, and for the purpose set forth.

5. A valve having a Vshaped recess at or near its periphery, in combination with a hanger havingasuspending-point corresponding in form to said V-shaped recess, substantially as herein described, and for the purpose set forth.

JAMES OLD.

Witnesses:

A. C. JoHNsToN, J. J. JoHNs'roN. 

